Materia Medica by Kent

MERCURIUS CYANATUS

(merc-cy)

Given a Merc. base and diphtheria, when the membrane is greenish and inclined to spread through the nose and involve a large surface, the Cyanide of Mercury is needed. It has exudation more marked than any other form of MERCURY. Malignant forms of diphtheria, rapidly forming, and with phagedenic ulceration.